Yondoo provided router, has "password" as admin pw, won't let us change it

Josh Luthman josh at imaginenetworksllc.com
Wed Feb 8 16:06:07 UTC 2023

What's the problem with double NAT?  I can't imagine an elderly mom trying
to host Xbox games - which is 95% of the problem with double NAT these days
(the other 5% being Ubiquiti bros having to access their Unifi router from

Your screenshots didn't come through, I suspect it's stripped via the
mailing list, but there's no model number specified anywhere.

NANOG really isn't the best place for this, but I don't know where else you
would be able to go besides what you've already done:  Yondoo support.

On Tue, Feb 7, 2023 at 9:17 AM TACACS Macaque via NANOG <nanog at nanog.org>

> Hi,
> Long time lurker, first time poster. Sorry in advance if this is the wrong
> forum for something like this.
> My mom's ISP (Yondoo) seems to be providing DOCSIS 3.1 CPE (Customer
> Premises Equipment) with a built-in router, without providing the ability
> to change the admin password from "password" on it.
> [image: Screenshot 2023-02-03 at 9.49.15 PM.png]
> ​[image: Screenshot 2023-02-03 at 9.51.51 PM.png]
> Their customer service rep said that this is not only WAI, but also wanted
> to charge her $50 to have a tech come out and change it. Which is obviously
> less than ideal.
> That aside, this seems like a pretty egregious security standard which,
> from my understanding, can have fairly dire security implications... e.g.,
> DNS server settings can be pointed at whatever someone wants here.
> My mom is elderly and had already fallen victim to a call center scammer a
> couple years ago. They briefly took control over her laptop before she
> called for backup. So I'm just a little concerned that we have no control
> over changing this router's admin password — from “password” — in a pinch,
> without waiting for a truck roll && shelling out $50.
> I've sent her a DOCSIS 3.1 modem that doesn't have a router built-in, in
> hopes that they'll let us bring our own. She does have Google Wifi, but we
> can't even put their router into bridge mode. So she would be double NATed
> *and* have no control over changing the admin password on the first
> router.
> Anyone have any experience with Yondoo? I've tried reaching out to them on
> multiple fronts, but have yet to hear back from them on this. A tech is
> scheduled to come out tomorrow, so the plan is to beg (bribe?) them to let
> us use our own modem and then take it from there.
> Thanks,
> Todd
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